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by notdonspaulding 2183 days ago
The parent comment is confused. NYC mesh doesn't use actual laser beams, they use a cheap 5Ghz TDMA solution made by Ubiquiti called Litebeam. Interference can be a big issue for this equipment, especially in an urban environment with a high noise floor.

(No affiliation with NYC folks, just a WISP guy handing out the basics)